Ｆ３０—３型对讲机电路的改进张峥国产Ｆ３０型系列无线电对讲机是目前国内性能较高的一种实用性的对讲机。它在开阔地通信距离，最远时可达１１．２公里，深受广大业余无线电爱好者青睐。在昆明、太原、开封等地均有业余无线电爱好者用该机通信。由于受成本限制，Ｆ３０... F30-3 walkie-talkie circuit improvement Zhang Zheng made F30 series radio walkie-talkie is currently a high performance of a practical walkie-talkie. It is in the open communication distance, the farthest up to 11.2 kilometers, favored by the majority of amateur radio enthusiasts. In Kunming, Taiyuan, Kaifeng and other places have amateur radio enthusiasts use the aircraft to communicate. Due to cost constraints, F30 ...